Turbo or non-turbo? I have a lot of friends with Z32s, they are awesome cars. 1996 was the last year for the Z32; it has some significant changes from the earlier years. Z32s are very comfortable, roomy, and a lot of fun.
The TT ones are very capable in a straight line, and can be really strong track cars. I've seen a few 600+hp Z32s on track, and one of my friends is puts down roughly 600hp on his. Stock, the turbos are on par with the later VQ-powered Zs.
But they're definitely not simple cars to work on (similar to the other Japanese sports cars from that era). Working on Z32s is not for the faint of heart; I hope you like working in extremely tight engine bays, and are comfortable with dropping an engine.
At 128k it's going to be in need of a substantial amount of service (the 120k) if it hasn't been done already.
I'd hop on
www.twinturbo.net and start researching, if you're really interested.
[This message has been edited by madd_ag_05 (edited 1/27/2012 3:42p).]